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https://www.readbyqxmd.com/read/28214216/cancer-stem-cell-cytokeratins-and-epithelial-to-mesenchymal-transition-markers-expression-in-oral-squamous-cell-carcinoma-derived-from-ortothopic-xenoimplantation-of-cd44-high-cells
#1
Nathália Paiva de Andrade, Maria Fernanda Setúbal Destro Rodrigues, Camila Oliveira Rodini, Fabio Daumas Nunes
Oral squamous cell carcinoma (OSCC) is the most prevalent neoplasia of oral cavity worldwide and prognosis remains unchanged in decades. Recently, different authors reported that head and neck squamous cell carcinomas have a subpopulation of tumor initiating cells that apparently correspond to cancer stem cells (CSC) and are also responsible for tumor growth and metastasis. The purpose of the present study was to investigate the microscopic and phenotypic characteristics of OSCC tumors induced after orthotopic xenoimplantation of SCC9(WT) cell line and CSC-enriched subpopulation isolated from SCC9 cell line based on high expression of the putative CSC marker CD44...
December 23, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28213878/cotransfecting-norepinephrine-transporter-and-vesicular-monoamine-transporter-2-genes-for-increased-retention-of-metaiodobenzylguanidine-labeled-with-iodine-131-in-malignant-hepatocarcinoma-cells
#2
Yanlin Zhao, Xiao Zhong, Xiaohong Ou, Huawei Cai, Xiaoai Wu, Rui Huang
Norepinephrine transporter (NET) transfection leads to significant uptake of iodine-131-labeled metaiodobenzylguanidine ((131)I-MIBG) in non-neuroendocrine tumors. However, the use of (131)I-MIBG is limited by its short retention time in target cells. To prolong the retention of (131)I-MIBG in target cells, we infected hepatocarcinoma (HepG2) cells with Lentivirus-encoding human NET and vesicular monoamine transporter 2 (VMAT2) genes to obtain NET-expressing, NET-VMAT2-coexpressing, and negative-control cell lines...
February 17, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28212423/phenolic-extract-from-oleaster-olea-europaea-var-sylvestris-leaves-reduces-colon-cancer-growth-and-induces-caspase-dependent-apoptosis-in-colon-cancer-cells-via-the-mitochondrial-apoptotic-pathway
#3
Wafa Zeriouh, Abdelhafid Nani, Meriem Belarbi, Adélie Dumont, Charlotte de Rosny, Ikram Aboura, Fatima Zahra Ghanemi, Babar Murtaza, Danish Patoli, Charles Thomas, Lionel Apetoh, Cédric Rébé, Dominique Delmas, Naim Akhtar Khan, François Ghiringhelli, Mickael Rialland, Aziz Hichami
Dietary polyphenols, derived from natural products, have received a great interest for their chemopreventive properties against cancer. In this study, we investigated the effects of phenolic extract of the oleaster leaves (PEOL) on tumor growth in mouse model and on cell death in colon cancer cell lines. We assessed the effect of oleaster leaf infusion on HCT116 (human colon cancer cell line) xenograft growth in athymic nude mice. We observed that oleaster leaf polyphenol-rich infusion limited HCT116 tumor growth in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28211314/procedure-for-horizontal-transfer-of-patient-derived-xenograft-tumors-to-eliminate-corynebacterium-bovis
#4
Christopher A Manuel Stacey M Bagby Julie A Reisinger Umarani Pugazhenthi Todd M Pitts Stephen B Keysar John J Arcaroli And Jori K Leszczynski
Human patient-derived xenograft (PDX) tumors, propagated in immunodeficient mice, are rapidly growing in use as amodelfor cancer research. Horizontal transfer between mice, without in vitro cell culture, allows these tumors to retainmany of their unique characteristics from their individual patient of origin. However, the immunodeficient mouse strainsused to grow these tumors are susceptible to numerous opportunistic pathogens, including Corynebacterium bovis. At ourinstitution, 2 in vivo tumor banks of PDX tumors had been maintained within nude mouse colonies enzootically infectedwith C...
February 16, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28211313/detection-and-elimination-of-corynebacterium-bovis-from-barrier-rooms-by-using-an-environmental-sampling-surveillance-program
#5
Christopher A Manuel Umarani Pugazhenthi Shannon P Spiegel And Jori K Leszczynski
Rodent health-monitoring programs based on sampling an IVC system's exhaust air dust (EAD) has enhanced and evenreplaced traditional sentinels for some rodent pathogens. EAD testing by qPCR assay is an optimal surveillance methodfor the rapid detection of Corynebacterium bovis-infected immunodeficient mice. Here we demonstrate that an active EADsurveillance program for C. bovis can be used to maintain nude mice C. bovis-free after the transition from historically enzootically infected colonies. During 3 events over 3 y, rapid detection of infection, elimination of infected mice, aggressivequarantine measures, and local decontamination prevented the spread of C...
February 16, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28210914/comparison-of-histopathological-characteristics-of-polyacrylate-polyalcohol-copolymer-with-dextranomer-hyaluronic-acid-after-injection-beneath-the-bladder-mucosa-layer-a-rabbit-model
#6
Abdol-Mohammad Kajbafzadeh, Shabnam Sabetkish, Reza Khorramirouz, Nastaran Sabetkish
OBJECTIVES: To compare short- and long-term local tissue reaction of polyacrylate polyalcohol copolymer (PPC) with dextranomer/hyaluronic acid (DHA) in rabbits. METHODS: Eight healthy New Zealand rabbits were randomly divided into two groups. In group I (control group), DHA was injected just beneath the mucosal layer of the bladder wall, while PPC was injected in group II. Subcutaneous injection of both bulking agents was also performed in nude mice. Histological evaluations with leukocyte common antibody (LCA), CD68, CD31, and CD34 were conducted on biopsies 1 and 6 months postoperatively...
February 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28209915/exclusive-destruction-of-mitotic-spindles-in-human-cancer-cells
#7
Leonid Visochek, Asher Castiel, Leonid Mittelman, Michael Elkin, Dikla Atias, Talia Golan, Shai Izraeli, Tamar Peretz, Malka Cohen-Armon
We identified target proteins modified by phenanthrenes that cause exclusive eradication of human cancer cells. The cytotoxic activity of the phenanthrenes in a variety of human cancer cells is attributed by these findings to post translational modifications of NuMA and kinesins HSET/kifC1 and kif18A. Their activity prevented the binding of NuMA to α-tubulin and kinesins in human cancer cells, and caused aberrant spindles. The most efficient cytotoxic activity of the phenanthridine PJ34, caused significantly smaller aberrant spindles with disrupted spindle poles and scattered extra-centrosomes and chromosomes...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28209530/slc39a6-promotes-aggressiveness-of-esophageal-carcinoma-cells-by-increasing-intracellular-levels-of-zinc-activating-phosphatidylinositol-3-kinase-signaling-and-upregulating-genes-that-regulate-metastasis
#8
Xinxin Cheng, Lixuan Wei, Xudong Huang, Jian Zheng, Mingming Shao, Ting Feng, Jun Li, Yaling Han, Wenle Tan, Wen Tan, Dongxin Lin, Chen Wu
BACKGROUND & AIMS: A common variant in the solute carrier family 39 member 6 gene (SLC39A6) has been associated with survival times of patients with esophageal squamous-cell carcinoma (ESCC). We investigated the function of SLC39A6 and ways in which this variant affects tumor progression by studying ESCC samples and cell lines. METHODS: SLC39A6 was expressed, or knocked down by expression of small hairpin RNAs, in ESCC cells (KYSE30 and KYSE450) and HeLa cells using lentiviral vectors; we analyzed effects on proliferation, colony formation, migration, and invasion in vitro...
February 13, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28209525/stromal-vascular-fraction-shows-robust-wound-healing-through-high-chemotactic-and-epithelialization-property
#9
Dong-Sic Chae, Seongho Han, Mina Son, Sung-Whan Kim
BACKGROUND: Although human stromal vascular fraction (SVF) has been regarded as an attractive stem cell source, its therapeutic mechanism in wound healing has not been fully elucidated. AIMS: In this study, we investigated the molecular characteristics and therapeutic property of SVF for wound healing. METHODS: Microarray data showed that SVF cells are enriched with a higher level of wound healing or epithelium development-related genes and micro RNA...
February 13, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28209170/lincrnafezf1-as1-represses-p21-expression-to-promote-gastric-cancer-proliferation-through-lsd1-mediated-h3k4me2-demethylation
#10
Yan-Wen Liu, Rui Xia, Kai Lu, Min Xie, Fen Yang, Ming Sun, Wei De, Cailian Wang, Guozhong Ji
BACKGROUND: Although the prognosis of gastric cancer patients have a favorable progression, there are some patients with unusual patterns of locoregional and systemic recurrence. Therefore, a better understanding of early molecular events of the disease is needed. Current evidences demonstrate that long noncoding RNAs (lncRNAs) may be an important class of functional regulators involved in human gastric cancers development. Our previous studies suggest that HOTAIR contributes to gastric cancer development, and the overexpression of HOTAIR predicts a poor prognosis...
February 16, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28208014/improved-antitumor-efficacy-of-hyaluronic-acid-complexed-paclitaxel-nanoemulsions-in-treating-non-small-cell-lung-cancer
#11
Joo-Eun Kim, Young-Joon Park
Paclitaxel (PTX) is a effectively chemotherapeutic agent which is extensively able to treat the non-small cell lung, pancreatic, breast and other cancers. But it is a practically insoluble drug with water solubility less than 1 µg/mL, which restricts its therapeutic application. To overcome the problem, hyaluronic acid-complexed paclitaxel nanoemulsions (HPNs) were prepared by ionic complexation of paclitaxel (PTX) nanoemulsions and hyaluronic acid (HA) to specifically target non-small cell lung cancer. HPNs were composed of DL-α-tocopheryl acetate, soybean oil, polysorbate 80, ferric chloride, and HA and fabricated by high-pressure homogenization...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28203205/intraocular-pressure-is-a-poor-predictor-of-hydration-status-following-intermittent-exercise-in-the-heat
#12
Ian B Stewart, Brittany Dias, David N Borg, Aaron J E Bach, Beatrix Feigl, Joseph T Costello
Current hydration assessments involve biological fluids that are either compromised in dehydrated individuals or require laboratory equipment, making timely results unfeasible. The eye has been proposed as a potential site to provide a field-based hydration measure. The present study evaluated the efficacy and sensitivity of intraocular pressure (IOP) to assess hydration status. Twelve healthy males undertook two 150 min walking trials in 40°C 20% relative humidity. One trial matched fluid intake to body mass loss (control, CON) and the other had fluid restricted (dehydrated, DEH)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28202997/-a-novel-tissue-engineered-bone-constructed-by-using-human-adipose-derived-stem-cells-and-biomimetic-calcium-phosphate-scaffold-coprecipitated-with-bone-morphogenetic-protein-2
#13
W R Jiang, X Zhang, Y S Liu, G Wu, Y J Ge, Y S Zhou
OBJECTIVE: To construct a novel biomimetic calcium phosphate (BioCaP) scaffold loaded with bone morphogenetic protein-2 (BMP-2), and to investigate its role in the osteogenesis of human adipose-derived stem cells (hASCs) in vitro and in vivo. METHODS: The BioCaP scaffold coprecipitated with BMP-2 (BMP-2-BioCaP) was constructed in this study. Field emission scanning electron microscopy (SEM) was used to analyze the morphology of the surfaces. The release kinetics was measured to evaluate the slow-release characteristics in vitro...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28202352/amino-acid-transporter-slc38a3-promotes-metastasis-of-non-small-cell-lung-cancer-cells-by-activating-pdk1
#14
Yanhui Wang, Li Fu, Minqing Cui, Yongbin Wang, Yan Xu, Molin Li, Jun Mi
BACKGROUND: Tumor metastasis is a finely-tuned pathological process coupled to metabolic reprogramming that includes both glutamine and glucose. The solute carrier SLC38A3, a member of amino acid/polyamine/organocation (APC) superfamily, is an L-glutamine transporter. It is not clear whether SLC38A3 involves the metastasis of NSCLC (non small cell lung cancer). METHODS: The scratch test and transwell assay were used to determine the ability of NSCLC to migrate. Cellular amino acids content was determined by mass spectrometry...
February 12, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28202351/exosomal-formulation-of-anthocyanidins-against-multiple-cancer-types
#15
Radha Munagala, Farrukh Aqil, Jeyaprakash Jeyabalan, Ashish K Agrawal, Ashley M Mudd, Al Hassan Kyakulaga, Inder P Singh, Manicka V Vadhanam, Ramesh C Gupta
Over the last two decades, berries and berry bioactives particularly anthocyanins and their aglycones anthocyanidins (Anthos) have demonstrated excellent anti-oxidant, anti-proliferative, apoptotic and anti-inflammatory properties. However, their physicochemical and pharmacokinetic limitations such as low solubility, low permeability, and poor oral bioavailability are considered as unfavorable properties for development as drugs. Therefore there is a need to develop systems for efficient systemic delivery and robust bioavailability...
February 12, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28202053/up-regulation-of-mir-146a-increases-the-sensitivity-of-non-small-cell-lung-cancer-to-ddp-by-downregulating-cyclin-j
#16
Lin Shi, Zhaozhong Xu, Gang Wu, Xiaoting Chen, Yuanyuan Huang, Yanjing Wang, Weiqiang Jiang, Bin Ke
BACKGROUND: Cisplatin (DDP)-based chemotherapy is the common first-line therapy for lung cancer. However, their efficacy is often limited by primary drug resistance and/or acquired drug resistance. The aim of this study was to investigate the function of miRNA-146a (miR-146a) in DDP-resistant non-small cell lung cancer (NSCLC), as well as the underlying mechanisms. METHODS: The effect of overexpression of miR-146a and/or knockdown of cyclin J (CCNJ) in A549/DDP and SPC-A1/DDP cells were investigated as follows...
February 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28199217/microrna-205-targets-smad4-in-non-small-cell-lung-cancer-and-promotes-lung-cancer-cell-growth-in-vitro-and-in-vivo
#17
Yuanyuan Zeng, Jianjie Zhu, Dan Shen, Hualong Qin, Zhe Lei, Wei Li, Zeyi Liu, Jian-An Huang
Despite advances in diagnosis and treatment, the survival of non-small cell lung cancer (NSCLC) patients remains poor; therefore, improved understanding of the disease mechanism and novel treatment strategies are needed. Downregulation of SMAD4 and dysregulated expression of miR-205 have been reported. However, the relationship between them remains unclear. We investigated the effect of microRNA (miR)-205 on the expression of SMAD4 in NSCLC. Knockdown and overexpression of SMAD4 promoted or suppressed cellular viability and proliferation, and accelerated or inhibited the cell cycle in NSCLC cells, respectively...
June 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/28197324/-125-i-f56-peptide-as-radioanalysis-agent-targeting-vegfr1-in-mice-xenografted-with-human-gastric-tumor
#18
Hua Zhu, Chuanke Zhao, Fei Liu, Lixin Wang, Junnan Feng, Chengchao Shou, Zhi Yang
(125)I-Radiolabeled F56 peptide was designed as a radioactive analogue of F56 (peptide WHSDMEWWYLLG) to bind with VEGFR1 receptor. It was synthesized in high radiochemical yield and specific activity. The in vitro stability of (125)I-F56 was tested, and the bioactivity of (125)I-F56 was confirmed by both cell uptake and binding affinity measurement in VEGFR1 positive BGC-823 cells. The time-radioactivity relationship and biodistribution of (125)I-F56 tracer were conducted using nude mice bearing human gastric carcinoma BGC-823, by noninvasive micro-SPECT/CT imaging...
February 9, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28197204/effects-of-combined-simultaneous-and-sequential-endostar-and-cisplatin-treatment-in-a-mice-model-of-gastric-cancer-peritoneal-metastases
#19
Lin Jia, Shuguang Ren, Tao Li, Jianing Wu, Xinliang Zhou, Yan Zhang, Jianhua Wu, Wei Liu
Objective. Aimed to study the effects of endostar and cisplatin using an in vivo imaging system (IVIS) in a model of peritoneal metastasis of gastric cancer. Methods. NUGC-4 gastric cancer cells transfected with luciferase gene (NUGC-4-Luc) were injected i.p. into nude mice. One week later, mice were randomly injected i.p.: group 1, cisplatin (d1-3) + endostar (d4-7); group 2, endostar (d1-4) + cisplatin (d5-7); group 3, endostar + cisplatin d1, 4, and 7; group 4, saline for two weeks. One week after the final administration, mice were sacrificed...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28196364/technetium-99m-or-cy7-labeled-rituximab-as-an-imaging-agent-for-non-hodgkin-lymphoma
#20
Ximena Camacho, Camila Longo Machado, María Fernanda García, Juan Pablo Gambini, Agustina Banchero, Marcelo Fernández, Natalia Oddone, Daniela Bertolini Zanatta, Carolina Rosal, Carlos Alberto Buchpiguel, Roger Chammas, Eloisa Riva, Pablo Cabral
INTRODUCTION: Rituximab was the first monoclonal antibody approved for the treatment of B-cell non-Hodgkin lymphoma (NHL) expressing CD20 antigen. This antibody has also the potential to be used as a specific fluorescent and radiolabel agent for targeting NHL. OBJECTIVE: To radiolabel rituximab with technetium-99m (99mTc) or Cy7 and evaluate both probes as potential imaging agents for NHL. METHODS: Rituximab was derivatized with the trifluoroacetyl hydrazino protected form of succinimidyl ester of HYNIC and radiolabeled with 99mTc...
February 15, 2017: Oncology
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